Submitted on 2008-02-17 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: The bryozoan is encrusting a cephalopod. The specimen is 8 cm across.

Photo title: Bryozoan

Taxa present: Repteria stolonifera

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Submitted on 2008-02-17 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This crinoid is on the same plate as the group of Arthroacantha and the bryozoan Sulcoretepora.

Photo title: Crinoid

Taxa present: Logocrinus brandoni

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Submitted on 2008-02-17 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: This is a close up view of the bryozoan on the Arthroacantha plate.

Photo title: Bryozoan

Taxa present: Sulcoretepora sp.

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Submitted on 2008-02-17 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes: Photo is 22 cm across.

Photo title: Group of Arthroacantha crinoids.

Taxa present: Arthroacantha carpenteri

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Submitted on 2008-02-17 by Joseph Koniecki

Location (approximate): Alpena, Alpena, MI

Strat unit: Thunder Bay formation

Submitter notes: It is interesting to note that Platyceras in not listed in either the checklist for the Traverse Group or Alpena book (Ehlers and Kesling 1970). Its occurrence should not be a surprise.

Photo title: Gastropod with brachiopod

Taxa present: Platyceras conicum

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Submitted on 2008-02-16 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes:

Photo title: Gastropod

Taxa present: Naticonema lineata

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Submitted on 2008-02-16 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Widder formation

Submitter notes:

Photo title:

Taxa present: Phacops rana

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Submitted on 2008-02-16 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes:

Photo title: Brachiopod

Taxa present: Megastrophia concava

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Submitted on 2008-02-15 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: Note the gastropod with spines sitting on top of the calyx. This association is not unusual but to be able to see the spines on the gastropod is uncommon.

Photo title: Crinoid with gastropod

Taxa present: Arthroacantha carpenteri

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Submitted on 2008-02-15 by Joseph Koniecki

Location (approximate): Paulding, Paulding, OH

Strat unit: Silica formation

Submitter notes: Crinods from the Silica Shale at Paulding are extremely rare. Very few have been found.

Photo title:

Taxa present: Proctothylacocrinus longus

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Submitted on 2008-02-15 by Joseph Koniecki

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes: Paraspirifer brachiopods from the Silica Shale are not rare, however, from the Silica Shale at Milan they are VERY rare. These two are also unusual because of their size. Small Paraspirifers are less common.

Photo title: Brachiopods

Taxa present: Paraspirifer bownockeri

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Submitted on 2008-02-15 by Joseph Koniecki

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes:

Photo title:

Taxa present: Platyceras bucculentum

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Submitted on 2008-02-15 by Joseph Koniecki

Location (approximate): Milan, Washtenaw, MI

Strat unit: Silica formation

Submitter notes:

Photo title: Inarticulate brachiopod

Taxa present: Petrocrania hamiltoniae

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Submitted on 2008-02-15 by Joseph Koniecki

Location (approximate): Paulding, Paulding, OH

Strat unit: Silica formation

Submitter notes:

Photo title:

Taxa present: Sulcoretepora sp., Hyperoblastus sp.

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Submitted on 2008-02-15 by Joseph Koniecki

Location (approximate): Sylvania, Lucas, OH

Strat unit: Silica formation

Submitter notes:

Photo title: Phyllocarid

Taxa present: Echinocaris punctata

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Submitted on 2008-01-28 by David Thompson

Location (approximate): Milan, Washtenaw, MI

Strat unit: Traverse formation

Submitter notes: The Phylum is Chordata, Subphylum Vertebrata, Class Elasmobranchiomorpha, Subclass Placoderm, Order Arthrodire, suborder Brachythoraci, Family Coccosteidae, Genus Protitanichthys. This shows some of the thickness of the bony shield. US .25 coin for scale.

Photo title: Second view of Protitanichthys, Devonian Fish Plate

Taxa present: Protitanichthys rockportensis

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Submitted on 2008-01-28 by David Thompson

Location (approximate): Milan, Washtenaw, MI

Strat unit: Traverse formation

Submitter notes: This is a rather large and thick piece of Arthrodire fish armor from the Silica Shale at the Martin-Marrietta Quarry in Milan, Michigan. The shield shows sensory lines at the edges and the characteristic 'bumps' over the bone.

Photo title: Protitanichthys cf. rockportensis, Cocosteomorph Fish Armor

Taxa present: Protitanichthys Rockportensis

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Submitted on 2007-11-28 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Arkona formation

Submitter notes: This is an extremely rare specimens with the brachioles attached. It is, however, not surprising that a few have been found considering the excellent preservation of other fossils in the Arkona Formation.

Photo title: Hyperoblastus with brachioles

Taxa present: Hyperoblastus decipiens

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Submitted on 2007-11-06 by Joseph Koniecki

Location (approximate): Thedford, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes: Trilobite is about 1 inch.

Photo title: Trilobite

Taxa present: Crassiproetus crassimarginatus

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Submitted on 2007-11-06 by Joseph Koniecki

Location (approximate): Arkona, Lambton, ON

Strat unit: Hungry Hollow formation

Submitter notes:

Photo title: Brachiopods

Taxa present: Rhipidomella penelope

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